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Finding the Fourth Proportional to 653,143.82, 901,288.70 and 366,608.54

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Solution

The fourth proportional to 653,143.82, 901,288.70 and 366,608.54 is: 505,891.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,143.82 : 901,288.70 = 366,608.54 : x
  2. Step 2: Convert to fraction form
    653,143.82/901,288.70 = 366,608.54/x
  3. Step 3: Cross multiply
    653,143.82x = 901,288.70 × 366,608.54
  4. Step 4: Simplify right side
    653,143.82x = 330,420,134,425.50
  5. Step 5: Solve for x
    x = 330,420,134,425.50/653,143.82
  6. Step 6: Final answer
    x = 505,891.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.